TI Information – Selective Disclosure. Battery Management Deep Dive 2016 TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Wireless Power Update
1
Mete YASAN
Oğuzhan DEMİRCİ
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Agenda
• Brief Wireless Power Overview
• WPC v1.1 to v1.2
• New Products
• TI Designs
2
TI Information – Selective Disclosure. Battery Management Deep Dive 2016 TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Wireless Power Overview
3
Water Proof
No Cables or Connectors
Convenience
Market Drivers for Wireless Power
Rugged Industrial Design
4
Wireless Power Applications
Automotive • Charging of Smart Phones
• Charging of Tablets
• EV Vehicle Charging
Industrial • Scanners & Point of Sale
• Power Tools and Appliances
• Cordless Instruments
Wearables • Smart Watches
• Fitness Bands
• Health Monitors
Smart Phones/Tablets • <5W Charging like USB
• >10W Fast Charging
• Powerbanks
Infrastructure • Integrated into Furniture
• Located in Hotels,
Restaurants, Coffee Shops,
Airports
Medical • Blood Glucose Meters/Monitors
• Health Patches
• Surgical Tools
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TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Wireless power overview
• Check out www.ti.com/wirelesspower
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TI Information – Selective Disclosure. Battery Management Deep Dive 2016
How does Wireless Power work?
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Transmitter Coil
Receiver Coil
Inductive Coupling
The System provides current to flow through the
primary coil wire (Transmitter coil)
The magnetic field induces a voltage/current
in the secondary coil wire (Receiver coil)
The newly received current can be used to
charge a battery or power a device
Return to Contents
Syste
m
Ba
tte
ry
(Lo
ad
)
Current passing through the wire generates
a magnetic field (Ampère's Right-Hand-Rule)
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Functional Block Diagram
8
TRANSMITTER RECEIVER
• Power is delivered through shielded coils (like a transformer with separated primary and secondary coils)
Return to Contents
• Before delivering power, the TX sends ‘ping’ signals to detect the RX and start system communication
• The RX control system tells the TX how much power to send and when to send it
Power
Voltage
Conditioning
Controller
Rectification (AC to DC)
Load Coil Drivers (DC to AC)
Sensing
Controller
Communication
DC Current
AC Current
Control Signals
TI Information – Selective Disclosure. Battery Management Deep Dive 2016 TI Information – Selective Disclosure. Battery Management Deep Dive 2016
WPC v1.1 to v1.2 Conversion
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TI Information – Selective Disclosure. Battery Management Deep Dive 2016
WPC v1.1 to v1.2
• WPC v1.2 is NOT the resonant extension of the spec
• WPC v1.2 defines requirements for low power and medium power products
– WPC Low Power (LP) specification adds a new thermal test for transmitters up to 5 W
– WPC approved the Medium Power (MP) specification for receivers and transmitters up
to 15 W
• This document allows LP implementations to take advantage of the MP
framework (received power calibration, improved FOD )
– This specification has both mandatory and optional features
• All WPC v1.1 and v1.2 devices are compatible
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TI Information – Selective Disclosure. Battery Management Deep Dive 2016
What’s New In WPC v1.2 Low Power
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Feature Applies to
TX
Applies to
RX
Comment
Mandatory Features
New Thermal Test YES NO Changed thermal test from v1.1 to
improve performance
New Version Number NO YES RX will declare itself v1.2
New Timing
Requirements
YES YES Editorial changes to make the spec
more robust
Optional Features
Two-way
Communication
YES YES
FOD Framework YES YES
Negotiation, WPID YES YES
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
What’s New In WPC v1.2 Medium Power
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Feature Applies to TX Applies to RX Comment
Mandatory Features
New Thermal Test YES
(at 5W)
NO Changed thermal test from v1.1 to
improve performance
New Version Number NO YES RX will declare itself v1.2
New Timing Requirements YES YES Editorial changes to make the spec
more robust
Two-way Communication YES YES TX can communicate to RX
FOD Framework YES YES Added mechanism to detect FO
presence before power transfer
Negotiation YES YES Allow the RX to negotiate for > 5 W
WPID YES YES OPTIONAL: Unique MAC address
TI Information – Selective Disclosure. Battery Management Deep Dive 2016 TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Wireless Power Portfolio & New Products
13
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
bq510XX
Wireless Power Product Portfolio
2014 2015
o First fully integrated WPC v1.1
o Power Supply or Direct Charge
o A6 Coil Array
o Simplified BOM
o DPL for 5V/USB PWR
o A11 Coil Array
o Simplified BOM
o DPL for 5V/USB PWR
o 2.5W optimized
o Small 30mm2 solution
o 10W Solution
o Proprietary 10W
o TX/RX Synergy
o AFE/ Controller
o Gen3 TX, 2-Chip solution
o 5V/A11 design
o Low Power
o Dual mode
o 50% lower losses
o Fully integrated Proprietary 10W
o 80% efficiency
o TX/RX Synergy
Tra
nsm
itte
rs
Re
ce
ive
rs
Release Date
Dual Mode:
WPC/PMA
o Q100 Auto Qualified
Auto Transmitter
o I2C, Low EMI w/ Shield
o WPC MP 15W TX
o Fixed Frequency
Smallest
RX Solution
bq51003 bq51025
bq500412
bq500212A
bq500414Q
bq50002
bq500511
bq500215 bq501210
bq51221
10W. 84%
Efficiency
o Improved communication
bq50002A
bq500511A
15W TX
bq51222 o WPC v1.2 5W RX
o Dual mode
2016 14
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
bq51222 – WPC v1.2 + PMA 5-W receiver
• Fully Compliant to Latest WPC v1.2 Specification
• Backwards Compatible to WPC v1.1 Transmitters
• Dual Mode PMA Compatibility
• High Efficiency Allows Minimal Temperature Rise
• WPC v1.2 and PMA Certified Receiver
• Adjustable Output Voltage (4.5 V – 8.0 V)
• Patented Transmitter Pad Detect Function
• I2C Communication with Host
• Up to 80% Efficiency
Features Benefits
• Qi-Certified Smart Phones, Tablets, and Other Handhelds
• Smart Watches
• Health Monitors
• Scanners / ePOS
• Cordless Instruments
• Power-banks
Applications
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TI Information – Selective Disclosure. Battery Management Deep Dive 2016
bq501210 15-W v1.2 Qi-certified transmitter
• Backwards compatible with existing 5-W WPC receivers
and TI 10-W proprietary receivers
• Fixed frequency (130 kHz) avoids resonant complexities
• Internal control of rail voltage regulator
• FOD can be tuned to accommodate non-WPC compliant
applications
• Enables High Power Charging
• Bi-Directional Communication
• High Voltage Dedicated Charging Port (HVDCP) support
• Foreign Object Detection (FOD)
• Conforms to Wireless Power Consortium (WPC) MP-A5
Transmitter type specification
• 86% Efficiency
Features Benefits
• Qi-Certified Smart Phones, Tablets, and Other Handhelds
• Point-of-Sale Devices
• Custom Wireless Power Applications
• Industrial/Medical Handheld
Applications
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TI Information – Selective Disclosure. Battery Management Deep Dive 2016 TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TI Designs (TIDA)
17
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Wireless Charging for Wearables
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TI Designs to demonstrate performance and simplify product development
• TI Receiver design: http://www.ti.com/tool/TIDA-00318 (Qi cert w/ Charger)
• TI Receiver design: http://www.ti.com/tool/TIDA-00329 (Smallest size, no Qi)
• TI Transmitter design: http://www.ti.com/tool/TIDA-00762 (bq50002A based, Non Qi)
• TI Transmitter design: http://www.ti.com/tool/TIDA-00334 (Small size, no Qi, 2.5W)
• TI Transmitter design: http://www.ti.com/tool/TIDA-00415 (Smallest, 1W no Qi)
bq51003 TIDA-00762
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
“To Qi, or not to Qi”
• bq500xxx (TX) and bq51xxx (RX) devices from TI were developed to comply with the Wireless Power Consortium (WPC) - Qi standard
• They can also be used for proprietary, non-standard applications
• Benefits of Qi compliance:
– Any Qi-certified RX device can be used with any Qi-certified TX pad or system (e.g. chargers built into furniture)
– OEM for the handheld device does not have to build their charging pad
• Some OEMs do not want Qi compliance
– Requires that OEM develop both sides of the wireless power system
– Allows custom form factors, physical matching between TX device and RX in portable device
– Good for non-planar shapes, or applications where the portable device OEM wants to have full control over the possible charging source (prevent 3rd party “unknown” chargers)
– Saves time and cost of Qi certification process, but OEM is responsible for certifying their own design including safety
WIRELESS POWER C O N S O R T I U M
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Tools & software (Transmitter)
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TI Designs
Name Description
TIDA-00415 1W Wireless Power Solution
TIDA-00762 Compact 1W Wireless Power Solution
TIDA-00334 Small Wireless Transmitter Solution , 2.5W
TIDA-00259 5W WPC (Qi) Compliant Wireless Power
TIDA-00623 Miniaturized 5W Wireless Power Solution
Evaluation
Modules
Name Description
bq50002AEVM-607 bq500511A and bq50002A Wireless Power Transmitter Evaluation Module
bq500212AEVM-550 5V, Qi Compliant Wireless Power Transmitter Manager Evaluation Module
bq500215EVM-648 WPC v1.1 Compliant Wireless Power Transmitter Controller Proprietary 10-W Power
bq500410AEVM-085 Qi-Compliant, Free-Positioning Wireless Power Transmitter Manager
bq500412EVM-584 Free Positioning, Qi-Compliant Wireless Power Transmitter Manager Evaluation Module
bq500414QEVM-629 bq500414Q Evaluation Module Automotive Free Positioning Wireless Power Transmitter Manager
bq501210EVM-756 bq501210 WPC 1.2 Wireless Power Transmitter Manager Evaluation Module with 15-W Power Delivery
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Tools & software (Receiver)
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TI Designs
Name Description
TIDA-00318 1W WPC(Qi) Compliant Wireless Power and Charger
TIDA-00329 Tiny Wireless Receiver Solution
TIDA-00668 Wireless Charger Booster Pack
TIDA-00881 Wireless Charger with 19mm Coil Booster Pack
TIDA-00712 Smartwatch Battery Management Solution
PMP11311 Wearable Device with Wireless Charging
TIDA-00669 Wireless Charger Booster Pack with Gauge
TIDA-00243 Dual Mode (WPC&PMA) Wireless Receiver
Evaluation
Modules
Name Description
bq51003EVM-764 Wireless Power Receiver Evaluation Module
bq51010BEVM-764 Wireless Power Receiver Evaluation Module
bq51013BEVM-764 WPC 1.1 Compatible Fully Integrated Wireless Power Receiver IC Evaluation Module
bq51020EVM-520 bq51020 Wireless Power Receiver Evaluation Module
bq51025EVM-649 bq51025 Wireless Power Receiver Evaluation Module
bq51050BEVM-764 Wireless Power Receiver Evaluation Module
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
Overview of TI Receiver Solutions Part Number bq51003 bq51013B
bq51010B
bq51020/1
bq51221/2
bq51025 bq51050/51B/52B
Architecture
Standard Supported WPC WPC WPC & WPC/PMA
WPC
(10W Prop) WPC
Power <2.5W 2.5 – 3.5W 5W 5-10W 3-4W
CSP (mm3)
QFN (mm2) 3 x 2 x 0.5
3 x 2 x 0.5
3.5 x 4.5 3.6 x 2.9 x 0.5 3.6 x 2.9 x 0.5 3 x 2 x 0.5
3.5 x 4.5
IC/Sys Eff 93%/70% 93%/75% 96%/78% 96%/84% 90%/77%
I2C No No Yes Yes No
Pad Det/ Alignment Aid No No Yes Yes No
Solution Size 50 mm2 75 mm2 77 mm2 120 mm2 75 mm2
Typical Coil 20 x 20 mm2 35 x 35 mm2 42 x 38 mm2 48 x 32 mm2 35 x 35 mm2
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C
O
I
L
Sync
Rect
LDO
Charger
C
O
I
L
Sync
Rect
Charger
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
<2.5W (Wearable)
RX
bq5105x
bq51003 bq51013B
TX
<5W
RX TX
<15W
RX TX
Devic
es
TI D
esig
ns
bq500212A
bq50002A/ bq500511A
bq51013B bq51010B bq51020/1
bq51221 bq51222
bq500212A
bq50002A/ bq500511A
bq51025
bq500215 bq501210
TIDA-00318 TIDA-00329
TIDA-00334 TIDA-00415
TIDA-00243
TIDA-00623
Wireless Power by Application/Power Level
All devices have EVMs available
New
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00762 – Transmitter for Wearables (1 W)
• Low parts count (<43) and low cost
• bq50002A & bq500511A plus all passive components fit in
the same area as the coil to allow for compact system
designs
• Pair with a TIDA-00318 (RX + charger) for a complete
wearable wireless power system
• Wireless power transmitter based on bq50002A Analog
Front End and bq500511A TX controller
• 5-V Micro-USB DC power input
• 1-W load power (5 V, 200 mA) when combined with the
bq51003 (or similar) receiver
• >60% Efficiency
• Small (20 or 30-mm diameter) transmitter coil
Features Benefits
• Non Qi-Certified wearable solutions
• Watches
• Fitness trackers
• GPS locators
Applications
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Efficiency with:
20-mm TDK TX coil
bq51003EVM-764
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00762 block diagram
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BQ500511
3.0V LDO
Demod1
Current Sense Amp
Gate Driver
B
5VV-in
ISENSE
TX COIL
Logic And
Oscillator
Gate Driver
A
Demod2
V-in
V-in
Filter 2
Filter 1
Comm2
Comm1
VCC
DRV_EN
MODE
PWM_CTRL
PWM1 / CLK_OUT
PWM2 / UP_DOWN
SCL
SDA
http://www.ti.com/tool/TIDA-00762
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00623 – Size optimized TX (5 W)
• Low parts count (<43) and low cost
• Compact solution size < 1 in2 (6.45 cm2)
• Pair with any 5-W receiver for a complete solution
• Improved efficiency at light loads
• 2-chip solution to enable simple implementation of A11
(A5) WPC transmitter
• bq50002A AFE designed with analog process
• bq500511A Digital controller with digital process
• 75% peak efficiency (Low power improved efficiency)
• Low standby power during Ping
Features Benefits
• Qi-Certified 5-W solutions
Applications
26
Efficiency better than
bq500212A at light load
bq500212A TIDA-00623
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00623 details
• bq50002A / bq500511A reference
design
– 5-V TX input, 5-W RX output
– Compact solution size < 1 in2 (6.45 cm2)
– WPC A11 coil (50 mm x 50 mm)
– bq50002A 32-pin QFN (5 mm x 5 mm)
– bq500511A 40-pin QFN (6 mm x 6mm)
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bq500511A
Current Sense
A11 Coil, no magnet Resonant Caps
bq50002A
http://www.ti.com/tool/TIDA-00623
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00623 Application Schematic
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TX Coil & Resonant Caps
Input & I2C connection
Temp / FOD / LED Mode
Current Sense
3.0-V regulator
output / filter
LED & Buzzer
Power Section Bulk Filter C
Tank
voltage
sample
Demod filter
1&2
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00318 – RX & charger for wearables
• Qi-certifiable solution
• RX & charger integrated included
• Low leakage (bq25100 < 75 nA)
• Ideal with multiple TIDA transmitters
• TIDA-00334 (bq500212A based 2.5 W)
• TIDA-00415 (bq500212A based 1 W)
• Wireless power receiver solution featuring bq51003 RX
and bq25100 linear charger
• Qi-compliant ensures operation with any WPC transmitter
• Small solution size – 5 mm x 15 mm (75 mm2)
• bq25100
• Adjustable charging current (10 to 250 mA)
• Termination current down to 1 mA
Features Benefits
• Qi-Certifiable 1-W wearable solutions
Applications
29
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00318 Application Schematic
RX coil
Comm / Boot / OVP
Charger bq25100
30
Cs Caps
Cd Caps
Comm / Boot / OVP http://www.ti.com/tool/TIDA-00318
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00329 – Ultra-small RX for wearables
• Tiny solution size < 29 mm2
• Easily adjustable maximum current
• Ideal with multiple TIDA transmitters
• TIDA-00334 (bq500212A based)
• TIDA-00415 (bq500212A based)
• TIDA-00762 (bq50002A/bq500511A based)
• Wireless power receiver solution featuring bq51003 RX
• Easily adjust maximum current
• Efficiency increases with correct current limit
• Same design for bq51050B
Features Benefits
• Non Qi-Certifiable 1-W wearable solutions
Applications
31
17 mm diameter US $0.10
2 W
5.23 mm x 5.48 mm
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00329 Application Schematic
32
http://www.ti.com/tool/TIDA-00329
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00415 – Transmitter for wearables (1 W)
• Low parts count and cost
• Small (20-mm diameter) coil
• IC and passive components fit into the same area as the
coil to allow compact system designs
• Can be easily paired with the TIDA-00318 RX + charger
for a complete wearable power system
• Wireless power transmitter based on bq500212A TX
controller
• 5-V Micro-USB DC power input
• 1-W load power (5 V, 200 mA) when combined with the
bq51003 (or similar) receiver
• Built-in output power limit
Features Benefits
• Non Qi-Certifiable 1-W wearable solutions
Applications
33
http://www.ti.com/tool/TIDA-00415
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00334 – Transmitter for wearables (2.5 W)
• Optimized for 2.5-W solutions
• Low parts count and cost
• Small (30-mm diameter) coil
• IC and passive components fit into the same area as the
coil to allow compact system designs
• Can be easily paired with the TIDA-00318 RX + charger
for a complete wearable power system
• Wireless power transmitter based on bq500212A TX
controller
• 5-V Micro-USB DC power input
• 2.5-W load power (5 V, 500 mA) when combined with the
bq51003 (or similar) receiver
• Full-bridge power stage
• Built-in output power limit
Features Benefits
• Non Qi-Certifiable 2.5-W wearable solutions
Applications
34
Efficiency with:
30-mm Wurth coil
bq51003EVM-764
http://www.ti.com/tool/TIDA-00334
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
PMP 11311 – Integrated power management +
• Highly configurable battery management solution
• Integrated wireless power
• Integrated Li-Ion battery charger
• Boost converter for display or heart rate monitor
• Buck converter for radio or dual core LDO
• bq25120 features ship mode with ultra-low IQ (<50 nA)
for long shelf-life
• Power management reference design for a wearable
device with wireless charging
• Wireless power (bq51003)
• Power management (bq25120)
• 300-mA charger with power path
• 100-mA LDO
• 300-mA DCDC
Features Benefits
• Activity trackers
• Watches
Applications
35
Efficiency with:
TIDA-00334
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
PMP11311 Power Tree
36
http://www.ti.com/tool/PMP1131
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00668 – Booster pack
• Qi-compatible – recharge the battery from any Qi
transmitter
• 3.3-V buck for Launchpad power
• 5.0-V boost for power supply circuitry
• Stackable design allows for creating a complete solution
• 50-mA wireless charger booster pack
• Wireless charger booster pack designed for any low
power Launchpad
• bq51003 receiver, bq25100 charger, bq29707 protection
• TPS61220 boost, TPS62736 buck
• Complete low power battery management and power
supply solution
Features Benefits
• Launchpad booster packs
Applications
37
http://www.ti.com/tool/TIDA-00668
TI Information – Selective Disclosure. Battery Management Deep Dive 2016
TIDA-00243 – miniature dual-mode receiver
• Works with both WPC and PMA standards
• Compact design 13 mm x 9 mm
• High efficiency
• Flexible configuration (external components or I2C)
• Wireless power receiver compatible with both WPC and
PMA standards
• Designed for 5-W applications (5 V at 1 A)
• Adjustable output voltage
• I2C interface for system design flexibility
• Low RDSON FETs for minimal power dissipation
Features Benefits
• Dual mode (WPC / PMA) solutions
• Phones, cameras, portable media players
Applications
38
Efficiency during
Charge cycle
http://www.ti.com/tool/TIDA-00243
TI Information – Selective Disclosure. Battery Management Deep Dive 2016 39
Thank You! Ti.com/WirelessPower
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